"Mighty Ducks" goalie Shaun Weiss has a tremendous amount of help waiting for him when he gets out of jail ... from someone who knows plenty about rehab -- Michael Lohan.
Sources close to the situation tell TMZ ... Lindsay's pop is one of many people who are getting involved to help out the struggling child star. We're told Michael doesn't know Shaun personally but he's no stranger to rehab and staying on the straight and arrow.
Our sources say several people in Hollywood contacted Michael about Shaun's situation, and he jumped at the opportunity to help.